1#!/usr/bin/env perl
2#
3# Based on NIST gcmDecryptxxx.rsp validation files
4# Only first 3 of every set used for compile time saving
5#
6# Copyright The Mbed TLS Contributors
7# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
8
9use strict;
10
11my $file = shift;
12
13open(TEST_DATA, "$file") or die "Opening test cases '$file': $!";
14
15sub get_suite_val($)
16{
17    my $name = shift;
18    my $val = "";
19
20    while(my $line = <TEST_DATA>)
21    {
22        next if ($line !~ /^\[/);
23        ($val) = ($line =~ /\[$name\s\=\s(\w+)\]/);
24        last;
25    }
26
27    return $val;
28}
29
30sub get_val($)
31{
32    my $name = shift;
33    my $val = "";
34    my $line;
35
36    while($line = <TEST_DATA>)
37    {
38        next if($line !~ /=/);
39        last;
40    }
41
42    ($val) = ($line =~ /^$name = (\w+)/);
43
44    return $val;
45}
46
47sub get_val_or_fail($)
48{
49    my $name = shift;
50    my $val = "FAIL";
51    my $line;
52
53    while($line = <TEST_DATA>)
54    {
55        next if($line !~ /=/ && $line !~ /FAIL/);
56        last;
57    }
58
59    ($val) = ($line =~ /^$name = (\w+)/) if ($line =~ /=/);
60
61    return $val;
62}
63
64my $cnt = 1;;
65while (my $line = <TEST_DATA>)
66{
67    my $key_len = get_suite_val("Keylen");
68    next if ($key_len !~ /\d+/);
69    my $iv_len = get_suite_val("IVlen");
70    my $pt_len = get_suite_val("PTlen");
71    my $add_len = get_suite_val("AADlen");
72    my $tag_len = get_suite_val("Taglen");
73
74    for ($cnt = 0; $cnt < 3; $cnt++)
75    {
76        my $Count = get_val("Count");
77        my $key = get_val("Key");
78        my $iv = get_val("IV");
79        my $ct = get_val("CT");
80        my $add = get_val("AAD");
81        my $tag = get_val("Tag");
82        my $pt = get_val_or_fail("PT");
83
84        print("GCM NIST Validation (AES-$key_len,$iv_len,$pt_len,$add_len,$tag_len) #$Count\n");
85        print("gcm_decrypt_and_verify");
86        print(":\"$key\"");
87        print(":\"$ct\"");
88        print(":\"$iv\"");
89        print(":\"$add\"");
90        print(":$tag_len");
91        print(":\"$tag\"");
92        print(":\"$pt\"");
93        print(":0");
94        print("\n\n");
95    }
96}
97
98print("GCM Selftest\n");
99print("gcm_selftest:\n\n");
100
101close(TEST_DATA);
102